Description BYRNA 12G CO2 CARTRIDGES ARE CUSTOM FIT FOR THE BYRNA TCR and LE LAUNCHERS. *Not compatible with Byrna SD. Our box of ten 12g CO2 cylinders are custom fit for the Byrna TCR and LE models. Now including 1 CO2 cylinder with oil for simple maintenance. It is recommended to keep an unpunctured cylinder in your launcher at all times for self-defense purposes. Punctured cylinders within your Byrna Launcher will leak over time.
